Backlight module and lamp possessing direct type light guiding board

A technology of backlight module and light guide plate, applied in the direction of light guide, optics, optical components, etc., can solve the problem of low brightness

Inactive Publication Date: 2008-03-26
ONION TECH CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although the side-type backlight module has a relativ

Method used

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  • Backlight module and lamp possessing direct type light guiding board
  • Backlight module and lamp possessing direct type light guiding board
  • Backlight module and lamp possessing direct type light guiding board

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Embodiment Construction

[0029] Some embodiments of the present invention are described in detail as follows. However, the invention may be practiced broadly in other embodiments than those described in detail, and the scope of the invention is not limited only by the claims.

[0030] Please refer to FIG. 1 , which shows a top view of a backlight module with a direct light guide plate disclosed by the present invention. The backlight module 10 includes a printed circuit board 20 , a plurality of LEDs 401 and a light guide plate 30 having a light incident structure 32 . A plurality of light emitting diodes 401 can be arranged on the printed circuit board 20 in an array or random arrangement to provide light sources of various wavelengths as required. Here, the light incident structure 32 is set corresponding to a plurality of LED assemblies 401, and these LED assemblies 401 include a plurality of LED chips, which may be LED chips with different wavelengths, such as white LED chips or RGB LED chips. T...

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Abstract

This invention discloses a sort of back-light module, and it consists of the printed circuit board, several light-emitting diodes, and the light board. The several light-emitting diodes which is arrayed in the array manner or the random array is fixed in the printed circuit board in order to offer the lighting power which is offered to the back-light module. The light board which has the in-light face and the out-light face is fixed in several light-emitting diodes, the in-light face of the light board is the flat curved face or the curved face which has the random curvature, the out-light face of the light board has several flute which makes the light power which is offered by the light-emitting diode to reach the total reflection in the light board effectively and after the power is emitted by the out-light face of the light board it can be mixed in the light board equably in order to make the light power which is emitted by the out-light face of the light board to have the symmetrical high light energy.

Description

technical field [0001] The present invention relates to a backlight module, especially a backlight module with a direct-type light guide plate. The light source provided by the light-emitting diode assembly can be totally reflected in the light guide plate through the incident structure of the light source of the light guide plate to uniformly mix the light. , to obtain a light source with high brightness and uniform energy. Background technique [0002] The traditional backlight module adopts a side light guide method, and the light source is introduced laterally from a light guide plate (LGP) in order to uniformize the light source. However, this method cannot effectively utilize the light energy of a large angle, and the space for arranging light sources in the lateral direction of the module is easily limited, so that the brightness of the backlight module cannot be improved. [0003] With the development of liquid crystal display technology, the scope of application of...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02B6/00G02F1/1335
Inventor 蒋承庭
Owner ONION TECH CORP
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